Explanation
All the given expressions represent Henry’s law.
Br2 being a liquid has more solubility than Cl2 or I2 (NaCl being ionic).
1 M aqueous solution means 1 mole of the solute in 1000 cc of the solution which includes the solute. Hence solvent present is less than 1000 cc or 1000 g (as density of H2O = 1 g/cc ). Therefore 1000 g of the solvent will contain more than one mole of the solute.
Blood is found to be isotonic with 0.91% NaCl solution.
For water, kb and kf are 0.52 and 1.86o respectively.
Ratio of concentrations of particles = 0.2 : 0.2 : 0.3 = 1 : 1 : 1.5 .
MgSO4 dissociates to give 2 ions.
Osmotic pressure is a colligative property.
Solubility of a gas in a liquid increases with decrease in temp.
Conc. of particles is minimum in sucrose. Hence depression in F. pt. is minimum or actual F. pt. is highest.
The substance which dissolves more on heating throws out more on cooling. Hence KNO3 is the correct option.
Conc. of particles in CaCl2 sol. will be max.
1 M urea and 1 M glucose will have same depression in freezing point while it will be double for 1 M NaCl.
Kb for benzene = 2.53K kg mol-1 .
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